Pink Wig & British Accent = Trouble

Britney Spears has a new accessory to go with her pink wig: a British accent.

In the last several weeks, Spears, 26, has been videotaped numerous times trading her Louisiana twang for U.K. inflections.

"She had the English accent thing going the whole time" while shopping at Kitson last Thursday, according to a source. "It didn't stop."

Even when angry, the accent appears. On an L.A. shopping trip to Macy's on Jan. 13, she screamed at the paparazzi, "Get out of my G------ face!" – in a British accent.

So is it all in fun or has she flipped her pink wig?

"When someone has dissociative identity disorder" – formally known as multiple personality disorder – "each identity is split off from the other," says L.A. psychologist Renee A. Cohen, who is not treating Spears. "Each would have its own name, memories, behavioral traits and emotional characteristics."

Cohen says the critical question is: "When Britney uses the British accent, or appears to take on another identity, does she know she's Britney Spears?"

"Otherwise, she could simply be behaving this way for attention, for sympathy, or any other reason," adds Cohen. "It's foolish to attempt to diagnose her without a formal evaluation."

One possible influence could be Spears's maternal grandmother, Lillian Bridges, who was originally from England.